Home / 20,348,425.49-28,080,820.73-11,181,658.73

Finding the Fourth Proportional to 20,348,425.49, 28,080,820.73 and 11,181,658.73

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Solution

The fourth proportional to 20,348,425.49, 28,080,820.73 and 11,181,658.73 is: 15,430,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,425.49 : 28,080,820.73 = 11,181,658.73 : x
  2. Step 2: Convert to fraction form
    20,348,425.49/28,080,820.73 = 11,181,658.73/x
  3. Step 3: Cross multiply
    20,348,425.49x = 28,080,820.73 × 11,181,658.73
  4. Step 4: Simplify right side
    20,348,425.49x = 313,990,154,064,857.06
  5. Step 5: Solve for x
    x = 313,990,154,064,857.06/20,348,425.49
  6. Step 6: Final answer
    x = 15,430,685.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.